The petition for a writ of certiorari is granted. The judgment below is vacated, and the case is remanded to the Court of Appeals with instructions to direct the District Court to proceed with the trial of the issues in this action unless within a reasonable time, no later than January 2, 1962, the State of Alabama shall have accorded to petitioner an opportunity to be heard on its motion to dissolve the state restraining order of June 1, 1956, and upon the merits of the action in which such order was issued. Pending the final determination of all proceedings in the state action, the District Court is authorized to retain jurisdiction over the federal action and to take[*17] such steps as may appear necessary and appropriate to assure a prompt disposition of all issues involved in, or connected with, the state action. Truax v. Corrigan, 257 U. S. 312, 331-334.